Entirely possible, and it gets easier as the game goes on. Early on, you have to tank Aura's WP through:
- Hydrangea boss fights (let them use pollen until WP is 0, then finish them off)
- Letting Womb of Lust lower it over time
- Using Vitality Potions (which you can craft at the Alchemist with Mutated Spores from hydrangeas)
- Using Sweet Memories
Later on, it becomes much easier as Aura gets higher Lewdness, more lewd passives that situationally lower WP, and also more curses that lower WP.